** Shares of drug developer Spruce Biosciences SPRB.O fall
74.94% to $1.30 premarket - top pct. loser across U.S. exchanges
** Co late on Wednesday said its experimental therapy
tildacerfont did not meet main goal in a mid-stage study in
adult classic congenital adrenal hyperplasia (CAH)
** SPRB intends to implement cost saving initiatives,
including termination of the study and a workforce reduction of
about 21%
** CAH is a rare genetic condition that affects the body's
ability to create and regulate key hormones
** The readout comes as a major blow to tildacerfont's
prospects in CAH introducing timeline and competitive risks -
Brokerage RBC
** Up to last close, stock up 77.1% YTD
(Reporting by Sriparna Roy in Bengaluru)
((Sriparna.Roy@thomsonreuters.com;))